Saw-filing machine



Feb., 2U, 1923 J V. MULKS. SAWHLING MACHINE.

3 SHEETS-SHEET I.

FILED MAR. 9,192!- YIM Feb. 2U, 1923. l 1,445,790. I. v. MULKS.

SAW FILING MACHINE.

FILED MAR. 9. 1921. 3 sHEEs-sHEET 2.

///,/////////////7//////////////// SIW-m Jo/w If www @Womad Feb.. 2U, 1923. l l 1,445,790.

I. V. IVIULKS.

SAW FILING IIlI/ICHIIIIE.l

FILED MM. 9. 1921. s-sHEETs-SHEET au Patented lieb. im, i923.,

Joint yf. iscritti,`

for Humana Wammes@- saw-nitrite Messine.

Applicatien tiled lMarch 9,

l To all fw hom t may concern Be 11t known that I, JOHN V. Mumie, a citizen ot the United States,` residing at 'liiillyarth in Spokane county and the State l `oi' 'Vasl'iingtoin have invented certain new and use'iul improvements in Saw-fhliling iMachines7 of which theiollowing` is a specification. l

` My present invention ,relates to unprove- `ments in saw tiling machines out 'the yhand operated `type, 'involving the use oi' a suc"- `pended holder tor a sharpening` tool `or file `that is reciprocabletransversely of thejsaw "to be sharpened, `in combination with an internjiittently movable saw carriage `and j "as itis being; sharpened.

' `incre vfully'desfnribed and claimed i With these andother objects ,in vienT the i inyentionconsists in certain novelcornbinations and arrangements of parts involying the sharpening -tool and `its Various adjustments, ,and valso the `saw` carriage and its feeding inechanisni `will be herenaflter in ,the accompanying drawings vlll have il-` lustrated one complete exampleloi' `the physical embodiment oi niy lnvention in .which the parts are combinedandarranged necord ingto the `best inode `,lll have thus tar delvised for the practical application ot the principles lot iny invention-` j `Figure l is `a! `front vView oi a `ina'nually operated `saw "tiling machine, involving; pedal power orthe saw carriagefeed, constructed according `to and embodying the principles of my invention.

Fisure 2 .is afl emerse@ View atl-i118 2-2 of Figure l, omitting the saw carriage flieed j mechanism, and ,illustrating .the adjustable, l sWiveled, reciprocating` lile'vholder. l

U `Figure 3 ian enlarged View foftlieiile liolderand its suspendinogarni, showing the i `lateral "and"verticaladjustments tor the holder, the holder, in i'ull being; shown 1921. `Serial No. 450,849.

in position for its return stroke andin dotted lines shown in position for the Working stroke oi the `file or sharpening tool. j i

Figure 4t is an enlarged detail `View', partly in section showingthe manner ott suspending the oscillatable arni` of the -iile holder and its ingI means.

"Figure 5 is an enlarged detail View, partly insection of a part of the ile holder, showswiveled, adjustable suspending theprovision for. lateral adjustment to tit different lengths of `files,` and one of the retracting springs `for elevating the file onv `its return, or non-Working` stroke. i

@Figure 6 is a detail side elevation o'f the saw carriage and clamp.

Figure 7 is a detail View in perspective ot oneend ot the san7 carriage, showing` also the `clanip and rack bar on the carriage.`

Figure 8 is a1 detail yiew, partly vin secthe fiile holder, andparticularly `the nieans for locking` the holder in adjusted position in connection With the l xed suspension plate for the holder.

trateda machine frame, @comprising a pair oi 1parallel channelplates l, 1T disposed horizontally at the proper height and supported i 4 `80 In the drawings which shoe7 the pre-E `ferred form of niyinvention l have illusat their `ends by the two uprights or posts 2, 2, bolted together and suitably braced.

In addition I. utilizetheftwo parallel spaced guide plates B, f5, `i'or the saw carriage, which `are `fashioned `with top edges 4 declining);

'lroni the longitudinal center, for a purpose i to be described. fTfhis structure is bolted tolgether as usual to .iiorin a rigid support tor 'the operating` parts of the saw'sharpeningr machine, theupper beanie Q'being designed to support the iile holder `andthe plates 3 standingonedge to support the `saw carv riag'e, as Will be' described. i

At the proper location, and disposed at the underside of the two beams l, a suspending plate 5 is bolted to form a rigid supportier the fileholder, and at ,its underside theplate is fashioned With an integral, `central, tubular Vboss 6, adapted to suspend the swiveled head 7 by its threaded bar 8. *The ioo bar 8 is inserted through the bSSLanId plate,A

and at ,the top vof therplate` a nut 9`is threaded on the lend ot thebar or bolt 8to suspendlthehead,but permit it to revolveor i oscillate `in a horizontal plane. The `head 7 7 5` tion, showing the swiveledvsuspension ot is bifurcated or-` torked to receive the upper end of the suspendingz),- ari'n `l() of the tile holder, and is perforated to receive the suspending bolt l l passed horizontally through the bifurcated swivel head, in order that the arrn may swing on the bearing` sleeve 19,

which encases the bolt within the head and frame is iiXed to the suspending arin lt) at 14, and these two side bars depend from the top bar adjacent their ends.

y As more clearly disclosed in Figure the side bars of the tile holder frame cach coinprises av laterally adjustable end sleeve or hanger l? surrounding` `the top bar and adapted to be secured thereon by a set screw or bolt 18, and the hanger has a depending` collar 19 for the reception orF the threaded end ofthe screw bar 20, "forming` one section ot the sectional, extensible side bar. fit the lower end of the section. 20 a turn buckle Q1 is connected by its threads as usual, and below the turn buckle a hollow tubular section 22 lis threaded in its lower end. The lower v,endoii this tubular section is closed and pertorated for the reception of a threaded stem or shank 23 which is located in the tubular section and provided at its upper end with a slide head'24.- Between the slide head and the closed bottom ofthel tubular section a lifting spring 25, is interposed and coilel about the stein 23,1and a pin 2G seated in a perforation in thewall oli the tubular section limits the downward ino-vement o't the slide hea-d on the stem. y vAt-its lower end, the stem is threaded into a sleeve 27 having a threaded boss QS 'tor the purpose, and it will be apparent that the action ot the spring is such as to hold the boss 28 in close Contact with. the lower, closed end o1" the tubular section, but the sleevel' may be withdrawn from contact with the tubular section against the tension of the spring. l

Thefiile F is thus suspended troni the tile holder by a resilient connection, and normally held in upli'tted position. Within each of the sleeves 2f is located a keeper or socket 29, one for. each end of the file and the socket member has a head or knob 30 to Vbe grasped by the hand or" the operator, and

` l() from the bifurcated swivel head T and by this' connection'tl'ic holder may be swung transversely of the supporting trame. The operator grasps the file holder by the knobs .its bolts 3G to engage the abutments 23T,

St), one in each hand, and swings the holder on its pivot ll with a rcciprocatinov motion, transversely of the saw t3. @n the working stroke ol the tile, the operator, by pressure on the knobs, depresses the lilo and its keepers, against the tension ol the two springs 25, and tho holder is swung;` away .from the operator with the lilo in contact with the saw teeth. (ln the return or uonworking stroke, the downward j n'essure on the knobs is released, and the springs elevate the tile and its holders or keepers, the lilo thus avoiding the teeth oi the saw on the. inward stroke or luoveinent ol2 the lilo holder.

The reciprocal movement oi the holder may bc guided by the utilization ol a ruido frame 39, which has at its lower end :i pair ot spaced, parallel plates l between which the side arins of the holder swing. and this guide traine may be adjusted to position in order that the holder niay rwiproeate in a direction generally transverse to the saw, but at various angles thereto. Thus the guide traine is provided with. an integral cross arm ifi-il. having` a central huh :lo that is lixed to rotate horizontally or swii el with the biturcated head. 7, but is lree to slide. on or be lifted with relation to the head. As best seen in Figure S a pair ol diaiuetrically arranged stop bolts 36 are screwed into the. cross arm oit the guide traine and project a suitable distance thereabovo in order to contact with con'iplenientary abutunnits or studs 3T, arranged in a circle or circular series about the center o'lg the swiveled head and .lej )endin` from the under 'tare ollv the, suspending' plate 5 lixed to the f-:upportinpr frame. The guide trame may be turned or oscillated in a horizontal plane and swing,r with it the ile holder and bilfurcated head, on the bolt 8 as a pivotal center, to lli-ingr the tile at the proper or desired angle to the saw :tor tiling` its teeth, and when swung' to the proper position the `guide traine. and its cross head may be elevated or lil'ed with relation to the holder and .enviveljheiulto engage the bolts lt with ahuluienls iT, thus holding the il'ran'ie, holder, and swi veled head in adjusted. :ingrid-.ir position for operation ot thc tile. 'l`he incuns 'or elevating.;l the cross head and looking; these parts eiubodies a horizontally arranged locking' plate 38 on the swivel head in eiuragenient with the lower ends of the locking,r bolts 36, within the guide traine, and a pair of cani disks 39 fixed to revolve with the bolt 'll in the swivel. head and in trictional engagement with the under tace ot the cani plate.. :is indicated in Figure S. One ot these disks has a cam lever 40, and it will be apparent that by swinging the lever, as indicated in dotted lines Figure 8 the cani plate may bey elevated carrying` with it the guide tranne and und thus hold the trame in adjusted position.

llO

insegno HBy a reverse turn of the lever,4 `the guide ,grooverh `parallel flanges 42 at its base 4to `(it over and `slide ontheupper edges of `the verticali)7 `.disposed guide plates 3 spaced apart as shown inFigure 2. The ,carriage is of suitablelength to accommodate ditterent lengths otsaws and is `equipped with `aclanip plate `43, hinged `at 44 to swing` out Vlaterally of the.carriageqtoreceii'e a saw, and provided with sintablemcans tor holding the saw between it andthe carriage, as indicated in Figures 1 and 2.

rlhe saw `carriage with its `claniped saw is lied intermittently o r step byst-ep as each successive saw tooth is tiled, and for this purpose a, longitudinally extending rack bar 45 is attached at the near side of the carriage, the number of teeth on the rack bar corresponding with the teeth of the saw. The feed actuating mechanism involves a pivoted pawl Aor ratchet 46, on one ot the saw-carriage `guide plates 3 to engage the rack bar 45, and two eccentric disks 47 are Q adjustably secured on the plate 3, one at each side oit the ratchet, to limit the stroke of the `ratchet with relation to the required movement of the saw carriage and the spaced teeth of the saw. The pawl is returned or retracted through the instrumentality of a.

spring 48 attached at one end to the front plate 3 and at its other end connected by a cord 49 to the ratchet or pawl as shown in Figure l. The working stroke of the ratchet is accomplished through the pull cord 5() attached to the ratchet, passed around a guide pulley 5l, and attached to pedal or `foot lever 52. The lever or pedal is pivoted on a bracket or hanger 53, and in position near the door where it is readily accessible for pressure by the toot ot the operator.

It will thus be apparent that after each working' stroke ot the iile, by pressure on the pedal 52 the saw carriage is moved one step byaction of the ratchet on the rack bar oil 'tht carriage, in order to bringl a successive saw tooth in position for filing. The guide plates 3 which torna the track for the saw carriage, decline, each from the center, on their upper edges ortrackway, to compensate for the rounded or doubly inclined cutting edge of the saw as shown, thuspresenting the toothed or cutting' edge 01"; the saw in proper position for action b v the tile, in order to secure the desired Cambre or crown to the saw edge.

The side bars of the file holder may readily be adjusted laterally to accommodate the holder for different lengths of tiles. and the turn buckles may be utilized to vertically adjust the iile holder and file to the required depth ot tooth on the saw, and

limit the depth ofthe cut. The iile may `be turned to the desired :angle and secured within the keepers or sockets by the set i bolts 31,1150 adjust the `tiling face to thetooth parent that l have provided a saw tiling` machine which may be operated with facility and a minimum expenditure oil labor by a singleoperator and by means (it which the saw may be sharpened. with accuracy and dispatch. y

`lflavingcgthus 'fully described my invention, what I claim as new and desire `'to secure by Letters Patent isf f1. The combination with a pivoted, `reciprocable file holder including vertically ein tensible side arms and means whereby said arms may be adjusted laterally, of a ille keeper at the free end of each arm, andresilient connections between said arms and keepers to permit depression oi'4 the keepers and file during` a working stroke ot the holder. y 2. The combination with a reciprocable tile holder including spaced, tubular side bars, of a le keeper at the 'free end of each bar, a movable stein in each bar secured` to a keeper, and a spring within each bar for supporting,` a stem, for the purpose described.

3. The combination in a reciproeable file holder with tubular side bars, of a file keeper and a resilient support therefor in each bar, tor the purpose described.

4. The combination with the tubular side bars of a reciprocable tile holder, of a spring supported stem in each bar, a sleeve attached at the lower end of each stem, a horizontally disposed keeper in each sleeve, and means for holdingsaid sleeves in adjusted position.

5. The combination with the tubular side bars of a reciprocable file holder, of a springl supported stem in each bar and a sleeve attached to each stem, a ile keeper rotatable and longitudinally movable in each sleeve, and means for retaining said keepers in adjusted position.

6. The combination with a fixed suspension plate and a swiveled head therein and an oscillatable file holder suspended in said head, of a guide frame rotatably supported on said head and vertically movable with relation thereto, means for elevating said frame, and co-acting means on said 'trame and plate tor locking said frame, holder and head against turning when the frame is elevated.

7. In a saw tiling machine the combination with a swiveled head, oscillatable le holder, and'guide :trame adapted to be elevated, of fixed abntments on a part of the machine,'projectionson the `frame adapted to co-act `with said abntn'ients, and means for elevating,v said frame Vtor engagement or' said abntments and projections for the purpose described.

8. The combination with a fixed suspension plate, swiveled head, oscillatable ile holder and vertically movable guide frame having projecting bolts, oi" a cam plate on said head engaging said bolts, cam actuat ing means for elevating said frame, and abutn'ients on said suspension plate for coactingl with the lbolts for the purpose described.

9. The combination in a saw filing` 1nachine, of a traclrway and saw carriage there.- on having a rack bar, a ratchet pivoted on said traclway to engage the rack bar, actuating means for the ratchet, and a pair of laterally disposed eccentric disks adjustable on the traclrway for limiting the nmvenlent of said ratchet.

l0. The combination in a saw ilinel niaehine 01' an intermittently movable san' earriage and actuating means therefor, a trackivay for said carriage. havingr an elevated center portion and declining ways extending therefrom, for the purpose described.

ll. The combination in a saiv filing ina chine of a` movable saw carriage having: spaced, grooved, base flanges, and means for moving said carriage, a pair of spaced tracks adapted to receive and support said grooved flanges, said tracks having! an elevate/il center portierL and decliningl toward their ends, for the purpose described.

in testimony ivhereoi I aiiix my signature.

JOHN V. MULKS. 

